Resilient tire.



l S. S. SCOTT.

RBSILIENT TIRE.

n APPLICATION FILED APB.. 27, 1911. 1,017,814. Patented Feb. 2o, 1912.

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cursen sr RESILIENT TIRE npp'ncation med apra ar, 1911. serial no. seams.

lTo all whom it may concern:

Beit known that I, SEMPLE'VS. Sco'r'r, a citizen of the United States, and a .resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Resilient -Tires;y

in resilient tires, primarily intended for use with heavy trucks or wagons, and consists of the matters hereinafter'.described and more particularly pointed out .in the appended claims.V

In the drawings z-Figure 1 is a side elevation of a part of my improved tire. Fig. 2is a view representing a top plan view of the same. Fig. 3 is a viewrepresenting a cross-section through the tire on an enlarged scale in a planel indicated by the line 3-3 of Fig. 1. Fig. 4 is 'a view representing a plan of the band or ring to which the tire members are secured My improved tire comprises an annular band adapted to be secured to the wheel rim and a plurality of independently yielding cushion tread members or blocks carried by said band and arranged in parallel rows en tending circumferentially -about the tread of the tire with the blocks of each row preferably in staggered relation withthefbloclrs of theadjacent row. As shown herein, the tire has two circumferential rows of said tread members or blocks each yieldingly connected to flat endless band mounted on the wheel rim. Y

Referring now to that embodiment of my invention illustrated in the drawings, A indicates a part of the felly of a wheel provided with my improved tire, and B a metallic clencher rim secured thereto. Said rim is made in two separable parts B?, Z), which 'areadapted to engage and retain on the wheel a flat, endless metalband C, to which the tread members or blocks comprising the tire, are yieldingly secured. Said band is provided with a plurality ofspaced, radially-extending, elongated, tubular nipples D, preferably arranged in parallel rows extending circumferentially about said band. (see Fig. l), wit-h each nipple of one row arranged opposite the space between the two its arrieresEMPLE's. scor'r, or CHICAGO, (LLIIvroI'sQF specification of Letters raient.

Patented Fe?" adjacent nipples of the other row, that is -to say, the nipples of one row are in staggered relation to the nipples of -theadjacent row. n said nipples aremounted a plurality of tread members or blocksF ,the outerends of which together constitute the tread of the tire and each of which is yieldingly mounted on an associated nipple soas to be capable of, independent yielding .move- Vtire members F are preferably made of elastic yielding material, such as rubber, and are inthe form of inverted cups. Within each cup is rigidly secured an inverted metallic cup f having a tubuljai' .side wall f1 which embraces and has telescoping relation with an associated tubular sleeve E. As shown herein the metallic cup f is provided on its outer wall with spacedl annular Vshoulders f2, which are enibeddecbin the inner wall of the rubber cup conuprising the tire member l, whereby the metallic cup is rigidly connected with said elastic rubber cup. coiled spring K rests' upon the shoulder f? at its lower end and bears at its upper end againstfheinside ofthe top wall` f3 of the metallic cup 7i.` ilvrithin the nipple D is located the head g" of a radially extending bolt G which projects through Said nipple is an apertureg in an integra-l reducing cap g2 on the outer end of said nipple, and has threaded engagement with the top wall f3 of.

the said metallic cup. The springsK normally hold the tread members` F' in their outermost radial position, the outward movement of said tread members being limited by the engagement of the heads g1 of the bolts G against the reducing caps g2 on theV outer ends of thenipples.- Preferably hard metal washers g3 are interposed between the-heads of the bolts and the reduc ing caps of the nipples topre'vent wear 'of said caps.

From the construction described itis apparent that each tread member or block is adapted to yield in a radial direction toward the wheel rim, the side wall of the metallic cup f sliding in telescoping relation on the associated tubular sleeve E against the outward pressure of the spring K which provides a cushion and acts to restore thea space K1 between the block bodies. Any

mud, gravel or small pieces of stone that are forced 'between the engaging edges of the block ends are thus enabled to Work between the` blocks toward the band C from which they Will readily pass laterally from the tire through the spaces between the tubular sleeves E. y

By arranging the metallic cups j' so as to embrace t-he tubular sleeves on Which theyI slide, gravel, mud, sand or the like are prevented from entering between the Walls of the relatively movable parts and producing Wear or passing into the interior of the cups there to' clog or obstruct the operation ot' the springs. Each time the blocks are subjected to pressure andcansed to yield toward the Wheel rim any gravel, mud, sand or the like which may collect on and stick to the outer surfaces of the sleeves E Will be scraped oil and thus removed by the end of the cup\vall. f

'It will be apparent that While my improved tire presents a continuous tread, any part of thisv tread is adapted to yield, when a stone or 'other obstruction engages-it, independently' of the other part-s ofthe tread,`

the action of my tire in this respect approximatingthe action of a pneumatic tire. Preferably the outer end of each block is provided With a rounded boss F3 to prevent skidding.

l claim as my invention l. A tire consisting of a plurality of circumferential rows of radially extending blocks7 means for supporting said blocks so that each may yield independently in a radial direction toward the tire center, said blocks having outer ends Which together constitute the tread of the tire, each block Lonnie having the edges ci? its outer end located closely adjacent to the edges of the outer ends of the adjacent blocks in its own row and in the adjacent row, and the adjacent sides of adjacent blocks being inclined away from each other toward the tire center.

2. A tire consisting of a pluralityof radially extending, annularly arranged blocks, the outer ends of which together constitute the tread of said tire, an annular band located radially Within said annular ron of blocks, each block being' provided with a ra- A diall f. extending cua-like recess o eninor Y 'v D through its inner end,ametallic tube secured within said cup-shaped recess, a sleeve rigidly secured 'to said band and extending Within said tube, said tube and sleeve having sliding relation with each other, resilient means located Within said sleeve adapted to resistthe movement 'of said block toward said band and means connecting said band and said. block adapted to limit the radial movement of said block away from said band.

- A tire consisting ,of a plurality ot radially extending, annularly arranged blocks, the outer endsot' `vhich together constitute the tread ci said tire, an annular band located radially Within said annular row of blocks, and means for yieldingly connecting each of said blocks te said band comprising a radially extending tubular nipple made rigid with said band and provided v'vith an apertured reducing cap at its outer end, said nipple having a base of larger diameter than its outer end, a radially extending sleeve ,rig-- idly secured to said nipple base, each of said blocks having a cup-shaped recess opening through its inner end, a metallic inverted cup rigidly secured Within the recess of said block, said sleeve extending Within. said cup and having telescoping relation. with the side Walls thereof, a bolt having a head slidablj,- mounted Within said nipple, said Vbolt projecting through the aperture in the said re ducing cap and having its end threaded inte the bottom oi said metallic cup, and a coiled spring interposed bet-Ween the bott-oni' of' `said metallic cup and the base ot said nipple. 

